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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
NAMESPACES=""
# Test that a link aggregation device (bonding, team) removes the hardware
# addresses that it adds on its underlying devices.
test_LAG_cleanup()
{
local driver=$1
local mode=$2
local ucaddr="02:00:00:12:34:56"
local addr6="fe80::78:9abc/64"
local mcaddr="33:33:ff:78:9a:bc"
local name
ip link add dummy1 type dummy
ip link add dummy2 type dummy
if [ "$driver" = "bonding" ]; then
name="bond1"
ip link add "$name" up type bond mode "$mode"
ip link set dev dummy1 master "$name"
ip link set dev dummy2 master "$name"
elif [ "$driver" = "team" ]; then
name="team0"
teamd -d -c '
{
"device": "'"$name"'",
"runner": {
"name": "'"$mode"'"
},
"ports": {
"dummy1":
{},
"dummy2":
{}
}
}
'
ip link set dev "$name" up
else
check_err 1
log_test test_LAG_cleanup ": unknown driver \"$driver\""
return
fi
# Used to test dev->uc handling
ip link add mv0 link "$name" up address "$ucaddr" type macvlan
# Used to test dev->mc handling
ip address add "$addr6" dev "$name"
ip link set dev "$name" down
ip link del "$name"
not grep_bridge_fdb "$ucaddr" bridge fdb show >/dev/null
check_err $? "macvlan unicast address still present on a slave"
not grep_bridge_fdb "$mcaddr" bridge fdb show >/dev/null
check_err $? "IPv6 solicited-node multicast mac address still present on a slave"
cleanup
log_test "$driver cleanup mode $mode"
}
# Build a generic 2 node net namespace with 2 connections
# between the namespaces
#
# +-----------+ +-----------+
# | node1 | | node2 |
# | | | |
# | | | |
# | eth0 +-------+ eth0 |
# | | | |
# | eth1 +-------+ eth1 |
# | | | |
# +-----------+ +-----------+
lag_setup2x2()
{
local state=${1:-down}
local namespaces="lag_node1 lag_node2"
# create namespaces
for n in ${namespaces}; do
ip netns add ${n}
done
# wire up namespaces
ip link add name lag1 type veth peer name lag1-end
ip link set dev lag1 netns lag_node1 $state name eth0
ip link set dev lag1-end netns lag_node2 $state name eth0
ip link add name lag1 type veth peer name lag1-end
ip link set dev lag1 netns lag_node1 $state name eth1
ip link set dev lag1-end netns lag_node2 $state name eth1
NAMESPACES="${namespaces}"
}
# cleanup all lag related namespaces and remove the bonding module
lag_cleanup()
{
for n in ${NAMESPACES}; do
ip netns delete ${n} >/dev/null 2>&1 || true
done
modprobe -r bonding
}
SWITCH="lag_node1"
CLIENT="lag_node2"
CLIENTIP="172.20.2.1"
SWITCHIP="172.20.2.2"
lag_setup_network()
{
lag_setup2x2 "down"
# create switch
ip netns exec ${SWITCH} ip link add br0 up type bridge
ip netns exec ${SWITCH} ip link set eth0 master br0 up
ip netns exec ${SWITCH} ip link set eth1 master br0 up
ip netns exec ${SWITCH} ip addr add ${SWITCHIP}/24 dev br0
}
lag_reset_network()
{
ip netns exec ${CLIENT} ip link del bond0
ip netns exec ${SWITCH} ip link set eth0 up
ip netns exec ${SWITCH} ip link set eth1 up
}
create_bond()
{
# create client
ip netns exec ${CLIENT} ip link set eth0 down
ip netns exec ${CLIENT} ip link set eth1 down
ip netns exec ${CLIENT} ip link add bond0 type bond $@
ip netns exec ${CLIENT} ip link set eth0 master bond0
ip netns exec ${CLIENT} ip link set eth1 master bond0
ip netns exec ${CLIENT} ip link set bond0 up
ip netns exec ${CLIENT} ip addr add ${CLIENTIP}/24 dev bond0
}
test_bond_recovery()
{
RET=0
create_bond $@
# verify connectivity
ip netns exec ${CLIENT} ping ${SWITCHIP} -c 2 >/dev/null 2>&1
check_err $? "No connectivity"
# force the links of the bond down
ip netns exec ${SWITCH} ip link set eth0 down
sleep 2
ip netns exec ${SWITCH} ip link set eth0 up
ip netns exec ${SWITCH} ip link set eth1 down
# re-verify connectivity
ip netns exec ${CLIENT} ping ${SWITCHIP} -c 2 >/dev/null 2>&1
local rc=$?
check_err $rc "Bond failed to recover"
log_test "$1 ($2) bond recovery"
lag_reset_network
}
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